PETA is a radical, far-left liberal organization that strives to the end of having absolutely zero animals in captivity - be it for pets, food, livestock, entertainment, etc.
That means that PETA doesn't want any of us to keep fish, reptiles, or any other animals. They may say otherwise now, but will continue to take baby steps in that direction until those ends are acheived.
That being said, I absolutely do NOT support PETA or anyone who stands with them.
My fish and reptiles have it very good...seeing that I do not own any wild-caught animals, I can't see how keeping them in captivity is infringing on their rights. I spend more feeding my snakes than I do feeding myself some weeks....